Let A=(2102)A = \begin{pmatrix} 2 & 1 \\ 0 & 2 \end{pmatrix}A=(2012). What is A2A^2A2?
(4404)\begin{pmatrix} 4 & 4 \\ 0 & 4 \end{pmatrix}(4044)
(4104)\begin{pmatrix} 4 & 1 \\ 0 & 4 \end{pmatrix}(4014)
(2202)\begin{pmatrix} 2 & 2 \\ 0 & 2 \end{pmatrix}(2022)
(4004)\begin{pmatrix} 4 & 0 \\ 0 & 4 \end{pmatrix}(4004)